Fiddler AlternativesOnly apps categorised as HTTP Clients

The best HTTP Client alternative to Fiddler is HTTP Toolkit, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Fiddler and 11 are HTTP Clients so hopefully you can find a suitable replacement. Other interesting HTTP Client alternatives to Fiddler are Proxyman, Requestly, Advanced REST Client and HttpMaster.

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Fiddler alternatives are mainly HTTP Clients, but if you're looking for API Clients or Web Debuggers you can filter on that. Other popular filters include Mac, Open Source, Linux, Mac + Open Source, Windows, iPhone and Google Chrome. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Fiddler.
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Alternatives
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Alternatives list

  1. HTTP Toolkit icon

    HTTP Toolkit

     109 likes

    HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS.

    55 HTTP Toolkit alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Docker
    • ES flagSpain
    • European Union flagEU
    HTTP Toolkit screenshot 1
    Good alternative?
     
  2. Proxyman icon

    Proxyman

     16 likes

    Monitor, intercept and debug HTTP/HTTPS and WebSocket traffic on macOS, iOS, Windows, and Linux. Includes advanced features such as Breakpoint, Map Local/Remote, scripting, filtering, reverse proxy, DNS spoofing, and automation for backend development.

    66 Proxyman alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • US flagUnited States
    Proxyman screenshot 1
    Good alternative?
     
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    1
  4. Requestly icon

    Requestly

     34 likes

    Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.

    49 Requestly alternatives

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Microsoft Edge
    • Google Chrome
    • Software as a Service (SaaS)
    • Selenium
    • Firefox
    • US flagUnited States
    Modify HTTP Headers
    Good alternative?
     
  5. Advanced REST Client icon

    Advanced REST Client

     28 likes

    API testing tool. Which allows web developers to create and test custom HTTP requests.

    78 Advanced REST Client alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Chrome OS
    • AppImageHub
    • Google Chrome
    • Chromium
    • PL flagPoland
    • European Union flagEU
    Advanced REST Client screenshot 1
    Good alternative?
     
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    1
  6. HttpMaster icon

    HttpMaster

     9 likes

    Practical and easy-to-use software tool for testing HTTP applications and services.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    HttpMaster screenshot 1
    Good alternative?
     
  8. Surge for Mac icon

    Surge for Mac

     3 likes

    Working quietly on the Menubar, Surge is a high-performance HTTP/SOCKS5 proxy server. It is capable of intercepting and logging the summary of HTTP traffic, and meanwhile transmitting the traffic to other proxy servers according to the flexible rule system.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    Surge for Mac screenshot 1
    Good alternative?
     
  9. Apidog icon

    Apidog

     5 likes

    Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • SG flagSingapore
    Apidog screenshot 1
    Good alternative?
     
  10. ArdorQuery icon

    ArdorQuery

     1 like

    ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.

    Cost / License

    Application type

    Platforms

    • Mac
    • Linux
    • Flathub
    ArdorQuery screenshot 1
    Good alternative?
     
  11. API Tester icon

    API Tester

     6 likes

    API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Mac
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    Test any type of API
    Construct complex requests
    Import collections
    Good alternative?
     
  13. HTTPeep icon

    HTTPeep

     Like

    Modern HTTP debugging tool, Debug, mock, and rewrite HTTP/HTTPS traffic with composable rules.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Linux
    • US flagUnited States
    HTTPeep screenshot 1
    Good alternative?
     
11 of 11 Fiddler alternatives